Modeling a Tumor Growth with Piecewise Constant Arguments

Figure 2

Behavior of the solutions of (68), where 𝛼=0.00195789, 𝛽₁=0.00196, 𝛽₀=0.00392, 𝛿₁=0.0125, 𝛿₂=0.00125, and 𝐸=0.4.